Parse integers

Compute the sum of integers read from STDIN as fast as possible.

Input: 50 000 000 lines, each containing one integer in the range [0; 2147483647].

Output: The uint64 sum of all numbers, printed as a decimal string.

Note: Integer overflow is expected – use a 64-bit accumulator.

Restrictions:30s512Mb 1 Score Packages

Feel free to create an issue if you need an extra library from the standard Ubuntu repository.

Name	Version	Description
libc6-dev	2.39-0ubuntu8.7	GNU C Library: Development Libraries and Header Files Contains the symlinks, headers, and object files needed to compile and link programs which use the standard C library.
libclang-common-14-dev	1:14.0.6-19build4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-15-dev	1:15.0.7-14build3	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-16-dev	1:16.0.6-23ubuntu4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-17-dev	1:17.0.6-9ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-18-dev	1:18.1.3-1ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-19-dev	1:19.1.1-1ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-20-dev	1:20.1.2-0ubuntu1~24.04.3	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libcrypt-dev	1:4.4.36-4build1	libcrypt development files This package contains the files needed for developing applications that use libcrypt.
libgcc-10-dev	10.5.0-4ubuntu2.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-11-dev	11.5.0-1ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-12-dev	12.4.0-2ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-13-dev	13.3.0-6ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-14-dev	14.2.0-4ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libobjc-13-dev	13.3.0-6ubuntu2~24.04.1	Runtime library for GNU Objective-C applications (development files) This package contains the headers and static library files needed to build GNU ObjC applications.
libssl-dev	3.0.13-0ubuntu3.11	Secure Sockets Layer toolkit - development files This package is part of the OpenSSL project's implementation of the SSL and TLS cryptographic protocols for secure communication over the Internet. . It contains development libraries, header files, and manpages for libssl and libcrypto.
libstdc++-10-dev	10.5.0-4ubuntu2.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-11-dev	11.5.0-1ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-12-dev	12.4.0-2ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-13-dev	13.3.0-6ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-14-dev	14.2.0-4ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libtbb-dev	2021.11.0-2ubuntu2	parallelism library for C++ - development files TBB is a library that helps you leverage multi-core processor performance without having to be a threading expert. It represents a higher-level, task-based parallelism that abstracts platform details and threading mechanism for performance and scalability. . (Note: if you are a user of the i386 architecture, i.e., 32-bit Intel or compatible hardware, this package only supports Pentium4-compatible and higher processors.) . This package includes the TBB development files.

Date	Author	Language	Status	Score
Aug 9, 2025 00:20	Leon Zhao	CPPg++13.3.0	Success	17,467
Aug 9, 2025 00:19	Leon Zhao	CPPg++13.3.0	Success	17,141+17.75 RP
Aug 8, 2025 22:48	python357-1	CPPg++13.3.0	Error
Aug 8, 2025 22:45	python357-1	CPPg++13.3.0	Error
Aug 8, 2025 22:44	python357-1	CPPg++13.3.0	Error
Aug 8, 2025 22:41	python357-1	CPPg++13.3.0	Error
Aug 8, 2025 22:40	python357-1	CPPg++13.3.0	Error
Aug 8, 2025 22:33	Ashish Ahuja	CPPg++13.3.0	Success	2,306,355
Aug 8, 2025 21:25	Ashish Ahuja	CPPg++13.3.0	Success	2,292,718
Aug 8, 2025 21:22	Ashish Ahuja	CPPg++13.3.0	Success	2,290,410
Aug 8, 2025 21:11	Leon Zhao	CPPg++13.3.0	Success	17,679+1.34 RP
Aug 8, 2025 21:08	Ashish Ahuja	CPPg++13.3.0	Error
Aug 8, 2025 21:00	Ashish Ahuja	CPPg++13.3.0	Error
Aug 8, 2025 20:55	Ashish Ahuja	CPPg++13.3.0	Error
Aug 8, 2025 20:33	Leon Zhao	CPPg++13.3.0	Success	17,721+17.23 RP
Aug 8, 2025 20:30	Ashish Ahuja	CPPg++13.3.0	Success	2,701,002
Aug 8, 2025 20:25	Leon Zhao	CPPg++13.3.0	Success	18,329
Aug 8, 2025 20:25	Ashish Ahuja	CPPg++13.3.0	Success	2,704,135
Aug 8, 2025 20:22	Ashish Ahuja	CPPg++13.3.0	Error
Aug 8, 2025 20:09	Ashish Ahuja	CPPg++13.3.0	Success	2,725,245
Aug 8, 2025 20:00	Ashish Ahuja	CPPg++13.3.0	Success	2,709,348
Aug 8, 2025 19:51	Ashish Ahuja	CPPg++13.3.0	Success	2,688,797
Aug 8, 2025 19:51	Ashish Ahuja	CPPg++13.3.0	Error
Aug 8, 2025 19:50	Ashish Ahuja	CPPg++13.3.0	Error
Aug 8, 2025 19:37	Leon Zhao	CPPg++13.3.0	Success	18,280
Aug 8, 2025 19:33	Leon Zhao	CPPg++13.3.0	Success	18,284
Aug 8, 2025 19:33	Ryhbt	CPPg++13.3.0	Success	58,860
Aug 8, 2025 19:32	Ryhbt	CPPg++13.3.0	Success	62,504
Aug 8, 2025 19:15	Ryhbt	CPPg++13.3.0	Success	58,851+0.04 RP
Aug 8, 2025 19:11	Ryhbt	CPPg++13.3.0	Success	58,864+22.42 RP
Aug 8, 2025 19:09	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 19:04	Leon Zhao	CPPg++13.3.0	Success	18,279+165.54 RP
Aug 8, 2025 19:03	Leon Zhao	CPPg++13.3.0	Error
Aug 8, 2025 18:56	Leon Zhao	CPPg++13.3.0	Error
Aug 8, 2025 18:52	Leon Zhao	CPPg++13.3.0	Error
Aug 8, 2025 18:33	Ryhbt	CPPg++13.3.0	Success	69,347
Aug 8, 2025 18:29	Ryhbt	CPPg++13.3.0	Success	69,390
Aug 8, 2025 18:22	Ryhbt	CPPg++13.3.0	Success	67,815+9.14 RP
Aug 8, 2025 18:21	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 18:16	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 18:11	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 18:08	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 18:07	Ryhbt	CPPg++13.3.0	Success	99,252
Aug 8, 2025 18:04	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 18:03	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 17:59	Ryhbt	CPPg++13.3.0	Error
Aug 8, 2025 17:23	Leon Zhao	CPPg++13.3.0	Error
Aug 8, 2025 17:22	Leon Zhao	CPPg++13.3.0	Error
Aug 8, 2025 16:30	Leon Zhao	CPPg++13.3.0	Success	26,262
Aug 8, 2025 16:17	Leon Zhao	CPPg++13.3.0	Success	26,492
Aug 8, 2025 15:25	Ashish Ahuja	CPPg++13.3.0	Error
Aug 8, 2025 15:22	Ashish Ahuja	CPPg++13.3.0	Success	2,698,410
Aug 8, 2025 15:22	Ashish Ahuja	CPPg++13.3.0	Success	2,694,391
Aug 8, 2025 13:12	Ashish Ahuja	CPPg++13.3.0	Success	70,101+137.81 RP
Aug 8, 2025 05:51	Ashish Ahuja	CPPg++13.3.0	Success	2,707,053
Aug 8, 2025 05:42	Ashish Ahuja	CPPg++13.3.0	Success	2,164,710
Aug 8, 2025 05:38	Ashish Ahuja	CPPg++13.3.0	Success	2,163,985
Aug 8, 2025 05:28	Ashish Ahuja	CPPg++13.3.0	Success	2,067,281
Aug 8, 2025 03:27	Leon Zhao	CPPg++13.3.0	Success	26,489
Aug 8, 2025 03:12	Leon Zhao	CPPg++13.3.0	Success	42,638
Aug 8, 2025 03:03	Leon Zhao	CPPg++13.3.0	Success	26,210+0.04 RP
Aug 8, 2025 03:00	Leon Zhao	CPPg++13.3.0	Success	26,236
Aug 8, 2025 02:53	Leon Zhao	CPPg++13.3.0	Success	26,213+58.68 RP
Aug 8, 2025 02:32	Leon Zhao	CPPg++13.3.0	Success	31,548
Aug 8, 2025 02:32	Leon Zhao	CPPg++13.3.0	Success	31,558
Aug 8, 2025 02:24	Leon Zhao	CPPg++13.3.0	Error
Aug 8, 2025 02:23	Leon Zhao	CPPg++13.3.0	Success	30,978+35.02 RP
Aug 7, 2025 23:29	Leon Zhao	CPPg++13.3.0	Success	34,748+8.76 RP
Aug 7, 2025 23:23	Leon Zhao	CPPg++13.3.0	Success	35,839+71.60 RP
Aug 7, 2025 21:08	Leon Zhao	CPPg++13.3.0	Success	53,356
Aug 7, 2025 21:03	Leon Zhao	CPPg++13.3.0	Success	55,435
Aug 7, 2025 21:03	Leon Zhao	CPPg++13.3.0	Error
Aug 7, 2025 21:02	Leon Zhao	CPPg++13.3.0	Error
Aug 7, 2025 21:02	Leon Zhao	CPPg++13.3.0	Error
Aug 7, 2025 21:00	Leon Zhao	CPPg++13.3.0	Error
Aug 7, 2025 20:18	Ryhbt	CPPg++13.3.0	Success	100,367
Aug 7, 2025 20:16	Ryhbt	CPPg++13.3.0	Success	100,375
Aug 7, 2025 20:15	Ryhbt	CPPg++13.3.0	Error
Aug 7, 2025 20:12	Ryhbt	CPPg++13.3.0	Success	100,369
Aug 7, 2025 20:12	Ryhbt	CPPg++13.3.0	Success	100,498
Aug 7, 2025 20:01	Ryhbt	CPPg++13.3.0	Success	72,307
Aug 7, 2025 19:45	Ryhbt	CPPg++13.3.0	Error
Aug 7, 2025 19:37	Ryhbt	CPPg++13.3.0	Error
Aug 7, 2025 19:29	Ryhbt	CPPg++13.3.0	Error
Aug 7, 2025 19:27	Leon Zhao	CPPg++13.3.0	Success	57,956
Aug 7, 2025 19:22	Leon Zhao	CPPg++13.3.0	Success	53,977
Aug 7, 2025 19:16	Leon Zhao	CPPg++13.3.0	Success	53,135
Aug 7, 2025 19:12	Leon Zhao	CPPg++13.3.0	Success	55,466
Aug 7, 2025 18:59	Leon Zhao	CPPg++13.3.0	Success	60,255
Aug 7, 2025 18:59	Leon Zhao	CPPg++13.3.0	Success	60,289
Aug 7, 2025 05:48	Ryhbt	CPPg++13.3.0	Success	72,307
Aug 7, 2025 05:47	Ryhbt	CPPg++13.3.0	Success	72,296+138.32 RP
Aug 7, 2025 01:17	rockyou1337	CPPg++13.3.0	Success	59,013+0.20 RP
Aug 6, 2025 03:01	rockyou1337	CPPg++13.3.0	Success	59,082+18.24 RP
Aug 6, 2025 02:54	rockyou1337	CPPg++13.3.0	Success	67,824
Aug 6, 2025 02:47	rockyou1337	CPPg++13.3.0	Success	66,220+146.17 RP
Aug 6, 2025 01:27	Leon Zhao	CPPg++13.3.0	Success	69,348
Aug 6, 2025 01:26	rockyou1337	CPPg++13.3.0	Success	2,066,161+4.84 RP
Aug 6, 2025 01:24	Triet Vo	CPPg++13.3.0	Error
Aug 6, 2025 00:49	Leon Zhao	CPPg++13.3.0	Success	48,220

Model	Intel(R) Xeon(R) CPU E3-1271 v3 @ 3.60GHz
Cores	1